RO78375B1 - Piesoelectric transducer - Google Patents

Piesoelectric transducer

Info

Publication number
RO78375B1
RO78375B1 RO103157A RO10315781A RO78375B1 RO 78375 B1 RO78375 B1 RO 78375B1 RO 103157 A RO103157 A RO 103157A RO 10315781 A RO10315781 A RO 10315781A RO 78375 B1 RO78375 B1 RO 78375B1
Authority
RO
Romania
Prior art keywords
piesoelectric
transducer
mass
vibrate
inactive
Prior art date
Application number
RO103157A
Other languages
Romanian (ro)
Other versions
RO78375A2 (en
Inventor
Florin Constantin Ghiurea
Original Assignee
Florin Constantin Ghiurea
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Florin Constantin Ghiurea filed Critical Florin Constantin Ghiurea
Priority to RO81103157A priority Critical patent/RO78375A2/en
Priority to US06/414,378 priority patent/US4447755A/en
Priority to EP82900317A priority patent/EP0069755B1/en
Priority to DE8282900317T priority patent/DE3272788D1/en
Priority to JP57500345A priority patent/JPS58500139A/en
Priority to PCT/RO1982/000001 priority patent/WO1982002602A1/en
Publication of RO78375B1 publication Critical patent/RO78375B1/en
Publication of RO78375A2 publication Critical patent/RO78375A2/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
    • G01P15/09—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by piezoelectric pick-up
    • G01P15/0907—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by piezoelectric pick-up of the compression mode type
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02827—Elastic parameters, strength or force

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

Traductor piezoelectric axial caracterizat prin aceea ca, în scopul evitarii denaturarii vibratiilor de detectat, prin marirea greutatii pieselor care vibreaza cu masa parazitara inactiva, ce poate modifica frecventa, amplitudinea si perioada de vibratie, este prevazut cu o masa seismica (B) confectionata în forma de carcasa, care este alcatuita dintr-o iesa cilindrica (5) si este prevazuta la un capat cu un tronson filetat (g).Axial piezoelectric transducer characterized by the fact that, in order to avoid the distortion of the vibrations to be detected, by increasing the weight of the parts that vibrate with the inactive parasitic mass, which can change the frequency, amplitude and period of the vibration, it is provided with a seismic mass (B) made in the form of the casing, which is made up of a cylindrical outlet (5) and is provided at one end with a threaded section (g).

RO81103157A 1981-01-20 1981-01-20 TRADUCTOR PIEZOLECTRIC RO78375A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
RO81103157A RO78375A2 (en) 1981-01-20 1981-01-20 TRADUCTOR PIEZOLECTRIC
US06/414,378 US4447755A (en) 1981-01-20 1982-01-18 Piezoelectric transducer accelerometer
EP82900317A EP0069755B1 (en) 1981-01-20 1982-01-18 Piezoelectric sensor
DE8282900317T DE3272788D1 (en) 1981-01-20 1982-01-18 Piezoelectric sensor
JP57500345A JPS58500139A (en) 1981-01-20 1982-01-18 piezoelectric transducer
PCT/RO1982/000001 WO1982002602A1 (en) 1981-01-20 1982-01-18 Piezoelectric sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO81103157A RO78375A2 (en) 1981-01-20 1981-01-20 TRADUCTOR PIEZOLECTRIC

Publications (2)

Publication Number Publication Date
RO78375B1 true RO78375B1 (en) 1983-07-30
RO78375A2 RO78375A2 (en) 1983-08-03

Family

ID=20109440

Family Applications (1)

Application Number Title Priority Date Filing Date
RO81103157A RO78375A2 (en) 1981-01-20 1981-01-20 TRADUCTOR PIEZOLECTRIC

Country Status (6)

Country Link
US (1) US4447755A (en)
EP (1) EP0069755B1 (en)
JP (1) JPS58500139A (en)
DE (1) DE3272788D1 (en)
RO (1) RO78375A2 (en)
WO (1) WO1982002602A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0316498B1 (en) * 1987-11-09 1992-03-04 Vibro-Meter Sa Accelerometer
CA1307941C (en) * 1988-01-29 1992-09-29 Michel Menard Disposable accelerometer for blast monitoring
DE58901793D1 (en) * 1988-04-05 1992-08-13 Siemens Ag RECEIVER AND METHOD FOR EXAMINING SOUND EMISSIONS.
JPH071280B2 (en) * 1989-10-06 1995-01-11 タカタ株式会社 Shock sensor
DE4011910A1 (en) * 1990-04-12 1991-10-17 Busch Dieter & Co Prueftech DEVICE AND METHOD FOR ACCELERATING MEASUREMENT BY PIEZO-ELECTRIC TRANSFORMER
US5661361A (en) * 1995-08-29 1997-08-26 Pruftechnik Dieter Busch Ag Balanced compression accelerometer
FR2759458B1 (en) * 1997-02-13 1999-04-30 Siemens Automotive Sa ACCELEROMETRIC CLICK SENSOR AND MANUFACTURING METHOD THEREOF
US6533494B1 (en) * 1999-07-16 2003-03-18 Bently Nevada, Llc Transducer mounting device and method
DE10009169B4 (en) * 2000-02-26 2004-02-19 Robert Bosch Gmbh Vibration sensor with a pressure sleeve
EP1574830A1 (en) * 2004-03-08 2005-09-14 BALANCE SYSTEMS S.p.A. Precision sensor assembly for rotating members in a machine tool
DE102008040525B4 (en) * 2008-07-18 2017-05-24 Robert Bosch Gmbh Micromechanical sensor element
US8460221B2 (en) * 2009-08-20 2013-06-11 Krypton Systems LLC Ultra-sonic and vibratory treatment devices and methods
US9360495B1 (en) 2013-03-14 2016-06-07 Lockheed Martin Corporation Low density underwater accelerometer
EP3526559B1 (en) * 2016-10-13 2023-09-06 South East Water Corporation Vibration sensor for fluid leak detection
US11152560B2 (en) 2017-05-04 2021-10-19 CTRL Systems Inc. Piezoelectric vibration sensor

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2411401A (en) * 1942-07-28 1946-11-19 Westinghouse Electric Corp Accelerometer
US3075099A (en) * 1959-06-03 1963-01-22 Endevco Corp Accelerometer
JPS5014880B1 (en) * 1970-09-01 1975-05-30
JPS5329194U (en) * 1976-08-19 1978-03-13
US4225802A (en) * 1978-02-23 1980-09-30 Nippondenso Co., Ltd. Piezoelectric knocking detector for internal combustion engine
SU706784A1 (en) * 1978-07-31 1979-12-30 Предприятие П/Я А-1742 Piezoelectric accelerometer
FR2448721A1 (en) * 1979-02-09 1980-09-05 Cartier Jean PIEZOELECTRIC ACCELEROMETER
DE2906407C2 (en) * 1979-02-20 1981-02-26 Kistler Instrumente Ag, Winterthur (Schweiz) Piezoelectric transducer element for installation in pressure, force or acceleration sensors
JPS5667731A (en) * 1979-11-06 1981-06-08 Nissan Motor Co Ltd Knocking sensor

Also Published As

Publication number Publication date
WO1982002602A1 (en) 1982-08-05
US4447755A (en) 1984-05-08
RO78375A2 (en) 1983-08-03
EP0069755A1 (en) 1983-01-19
DE3272788D1 (en) 1986-10-02
EP0069755B1 (en) 1986-08-27
JPS58500139A (en) 1983-01-20

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